I build data systems end to end: ETL pipelines, web scrapers, dashboards, and AI-powered search (embeddings, vector databases, RAG). 10+ years in data science and engineering, most of it at Bank of Georgia — Airflow-based ETL and migration pipelines, credit risk models (xgboost), NLP for customer feedback analysis, and full-stack internal tools (Flask, Django, React). Earlier, I optimized 24/7 call distribution for Georgia's national emergency center using queueing theory. On Upwork: 11 completed jobs, 5.0 rating, 800+ hours, $60K+ earned. Projects include a kNN vector search system, a large-scale hashing & clustering pipeline (AWS, Postgres), real-time trading dashboards (Dash, Bokeh), and Selenium-based data collection. A client wrote: "He demonstrated his expertise in using Python and Selenium for real-time data collection... His user interface design was intuitive." What I take on: • Data pipelines & ETL — Airflow, Python, Postgres, AWS • Web scraping & monitoring — Selenium/Playwright, scheduled jobs with alerts • Dashboards — Dash, Bokeh, real-time data visualization • AI search & retrieval — vector databases, embeddings, RAG over your documents or data MSc in Mathematics. I write simple, explicit code that someone else can maintain — no clever abstractions. I respond fast and deliver working systems, not prototypes.

I’m a Data Engineer and Backend Developer with over 4 years of experience building data-driven systems, scalable ETL pipelines, and backend services using Python, Apache Spark, Django, and AWS. I specialize in turning complex data into reliable, high-performance systems - from big data pipelines in aviation to AI-powered web applications and data enrichment tools for clients across Europe and Asia. My recent work includes: 🚀 Optimizing enterprise ETL pipelines (SSIS, Spark) - improving runtime by up to 50% and ensuring data consistency across production environments. 🧠 Building AI-based tools - developing Django apps that use LLMs for summarization, content generation, and intelligent data processing. ☁️ Deploying scalable cloud solutions - containerized and orchestrated microservices using AWS ECS, ECR, and serverless tools. 🔍 Designing efficient data flow architectures - integrating NoSQL databases like ElasticSearch for real-time data retrieval from large scraping pipelines. I bring a mix of software engineering discipline and data pipeline expertise, backed by an Engineer’s degree in Information Technology and a Master’s in Computer Science. My approach combines technical depth, reliability, and clear communication. Ensuring every project I take on is delivered clean, scalable, and production-ready. If you need help building, automating, or optimizing data systems, let’s connect. I can help turn your data challenges into well-structured, efficient solutions.

As an accomplished C# developer and programmer with over 6 years of experience, I specialize in crafting reliable, high-quality web and desktop applications that meet and exceed client expectations. My passion for technology and commitment to delivering exceptional results have driven me to excel in the world of software development, providing innovative solutions tailored to each client's unique needs. My expertise includes: - Web and desktop application development using C#, ASP.NET, .NET Core, and .NET Framework. - Database design and optimization with SQL Server, Entity Framework, and LINQ. - Front-end development with HTML, CSS, JavaScript, and modern frameworks like Angular, React, and Blazor. - Integration with APIs, third-party services, and legacy systems. - Performance optimization, troubleshooting, and code refactoring. - Agile methodologies and strong collaboration with cross-functional teams. - PEPPOL Implementation - Business Dashboard - Analytics Over the course of my career, I've had the opportunity to work on a diverse range of projects, including financial systems, content management systems, inventory management, and more. My ability to quickly grasp complex concepts and adapt to new technologies allows me to tackle challenging projects with confidence. When you choose to work with me, you'll benefit from clear communication, timely updates, and a dedicated partner who's fully invested in your project's success. My goal is to not only meet your requirements but to exceed your expectations and establish a lasting relationship built on trust and outstanding results. Let's discuss your project and how my expertise as a C# developer and programmer can help bring your vision to life!

𝐖𝐢𝐭𝐡 𝟏𝟓+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐌𝐢𝐜𝐫𝐨𝐬𝐨𝐟𝐭 𝐃𝐲𝐧𝐚𝐦𝐢𝐜𝐬 𝐄𝐑𝐏 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐚𝐧𝐝 𝟑𝟓+ 𝐬𝐮𝐜𝐜𝐞𝐬𝐬𝐟𝐮𝐥 𝐞𝐧𝐝-𝐭𝐨-𝐞𝐧𝐝 𝐄𝐑𝐏 𝐢𝐦𝐩𝐥𝐞𝐦𝐞𝐧𝐭𝐚𝐭𝐢𝐨𝐧𝐬 I help organizations transform complex business processes into scalable, efficient, and well-integrated ERP solutions. My experience covers the full ERP lifecycle, 𝐝𝐢𝐬𝐜𝐨𝐯𝐞𝐫𝐲 𝐚𝐧𝐝 𝐅𝐈𝐓/𝐆𝐀𝐏 𝐚𝐧𝐚𝐥𝐲𝐬𝐢𝐬 𝐭𝐨 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧 𝐚𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞, 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭, 𝐝𝐚𝐭𝐚 𝐦𝐢𝐠𝐫𝐚𝐭𝐢𝐨𝐧, 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬, 𝐝𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭, 𝐚𝐧𝐝 𝐩𝐨𝐬𝐭-𝐠𝐨-𝐥𝐢𝐯𝐞 𝐨𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧. 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈 𝐇𝐚𝐯𝐞 𝐖𝐨𝐫𝐤𝐞𝐝 𝐖𝐢𝐭𝐡 Government & Public Sector | Private Sector | FMCG | Energy | Oil & Gas | Banking | General Trading | Rental | Engineer-to-Order (ETO) | Distribution & Trading 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 - Microsoft Dynamics ERP Solution Architecture - Business Process Analysis & FIT/GAP Workshops - Agile ERP Project Management - Business Central & Dynamics 365 Custom Development - ERP Implementation & Optimization - Historical Data Migration & Reconciliation - API & Third-Party Integrations - Legacy ERP Dynamics GP | NAV Upgrades & Cloud Migration - Multi-company & Multi-currency Solutions - Finance, Supply Chain & Project Accounting - Microsoft Product Expertise - Microsoft Dynamics 365 Finance - Dynamics 365 Supply Chain Management - Dynamics 365 Project Management & Accounting (PMA) - Microsoft Dynamics 365 Business Central - Dynamics 365 Project Operations - Dynamics 365 Sales - Dynamics 365 Field Service - Microsoft Power BI Selected Projects & Technical Solutions - Designed a Treasury Management solution leveraging Dynamics 365 PMA and Budgeting functionality - Built Xero ↔ Dynamics 365 Business Central integrations - Built Magento ↔ Business Central integrations - Developed Dynamics 365 F&O integrations using Azure Blob Storage - Upgraded organizations from Microsoft Dynamics NAV/Navision to Business Central - Migrated Microsoft Dynamics GP to Business Central - Migrated financial and operational data from QuickBooks, Sage, NetSuite, GP, and other legacy systems - Developed SFTP banking integrations for bank statements, EFT and PAD transactions - Implemented and supported Business Central On-Premises and Cloud environments - Designed custom APIs and integrations connecting ERP systems with external applications and automation platforms 𝐖𝐡𝐚𝐭 𝐘𝐨𝐮 𝐂𝐚𝐧 𝐄𝐱𝐩𝐞𝐜𝐭 I focus on solutions that are practical, scalable, maintainable, and aligned with real business operations, not unnecessary customization. Whether you need a complete ERP implementation, rescue of an existing Dynamics project, Business Central customization, system integration, data migration, or ERP optimization, I can help you move from requirements to a reliable production solution. Need help with Microsoft Dynamics 365 or Business Central? Let’s discuss your requirements and identify the best approach

• Advance MS SQL Server (New features of 2022) • Complex Query, Stored Procedure & Functions writing skills. • Database Performance & Tuning • Business Intelligence (SSIS & ETLs) • Datawarehouse, Data Cleansing & Aggregation. • Project Management & Effort Estimation of Complex Projects. • Database Administration • Analytical Functions and Their proper use in Code. • Advance PL/SQL (Oracle) Have a diverse knowledge of systems/database development lifecycle business process analysis and requirements gathering. Determining the need for a system and defining the goals for the system. To modeling the database and application interfaces, building, testing, and implementing the database and applications. Have an outstanding communication and interpersonal capabilities with ability to deliver quality results independently and with team. ⭐ 𝗛𝗲𝗿𝗲'𝘀 𝘄𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗰𝗼𝗻𝘁𝗿𝗶𝗯𝘂𝘁𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁. ⭐ ✅ 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗶𝗻𝗴 𝗱𝗮𝘁𝗮 𝗺𝗼𝗱𝗲𝗹𝘀 𝗮𝗻𝗱 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲𝘀: This includes identifying the data sources, designing data flows, and creating a robust data infrastructure that supports data processing and analysis. ✅ 𝗘𝘅𝘁𝗿𝗮𝗰𝘁𝗶𝗻𝗴 𝗶𝗻𝘀𝗶𝗴𝗵𝘁𝘀 𝗳𝗿𝗼𝗺 𝗱𝗮𝘁𝗮: The insights of data such as customer behavior patterns, market trends, and operational efficiencies, can be used to improve business processes, develop new products and services, and create more targeted marketing campaigns. ✅ 𝗕𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗽𝗿𝗲𝗱𝗶𝗰𝘁𝗶𝘃𝗲 𝗺𝗼𝗱𝗲𝗹𝘀: I can also build predictive models using machine learning algorithms that analyze past data to forecast future trends and outcomes, helping in more accurate forecasts, anticipate customer needs, and identify potential risks and opportunities. ✅ 𝗜𝗺𝗽𝗹𝗲𝗺𝗲𝗻𝘁𝗶𝗻𝗴 𝗱𝗮𝘁𝗮-𝗱𝗿𝗶𝘃𝗲𝗻 𝗱𝗲𝗰𝗶𝘀𝗶𝗼𝗻-𝗺𝗮𝗸𝗶𝗻𝗴: By creating dashboards and visualizations, I can help clients make data-driven decisions in real-time. ⭐ 𝗪𝗵𝘆 𝗜 𝗦𝘁𝗮𝗻𝗱 𝗢𝘂𝘁 𝗔𝗺𝗼𝗻𝗴 𝗢𝘁𝗵𝗲𝗿 𝗙𝗿𝗲𝗲𝗹𝗮𝗻𝗰𝗲𝗿𝘀 ⭐ ✅ 𝗖𝗹𝗶𝗲𝗻𝘁 𝗦𝗮𝘁𝗶𝘀𝗳𝗮𝗰𝘁𝗶𝗼𝗻: My commitment to providing value and earning trust shines through in glowing client reviews. ✅ 𝗘𝘅𝗰𝗲𝗲𝗱𝗶𝗻𝗴 𝗘𝘅𝗽𝗲𝗰𝘁𝗮𝘁𝗶𝗼𝗻𝘀: I thrive on surpassing client expectations, consistently leaving them impressed with my work. ✅ 𝗣𝗿𝗼𝗺𝗽𝘁 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻: I prioritize responsiveness, ensuring open lines of communication with clients at all times. ✅ 𝗧𝗲𝗻𝗮𝗰𝗶𝘁𝘆: My resilience is unmatched; I tackle challenges head-on, relentlessly pursuing solutions for my clients. ✅ 𝗖𝗼𝗺𝗽𝗮𝘀𝘀𝗶𝗼𝗻: Kindness underpins every interaction, as I treat each client with respect, empathy, and a genuine desire to improve their circumstances. L I N K E D I N : Irfan Baig. MS SQL Server, SSIS, SSRS, SSAS, PL/SQL, ETL, BI Developer & Oracle

- 6 years of PYTHON - 4 years on AI - 3 years on CHAT BOT [ RASA| GPT-2&3 | DialoGPT | Dialogflow | Amazon Lex - 3 years on open cv and image/ object detection [ tensorflow - 2 years on NLP and NER - 2 years of experience in GOOGLE CLOUD [ vertex AI | Cloud Run | Cloud Build | Compute engine | Pub Sub - Proficiency in SQL & NoSQL databases. - Hard worker and available around the clock.

Teams usually come to me when their backend, API, data pipeline, or AI workflow technically works — but is not reliable enough for real usage. I help stabilize systems that are already built but breaking under production conditions: inconsistent data, brittle integrations, unclear API behavior, missing validation, edge-case failures, or AI outputs that are difficult to trust downstream. My work usually falls into three areas: • Backend/API reliability — fixing brittle routes, edge cases, validation gaps, integration failures, and unclear system boundaries • Data pipelines and transformations — building ETL, integration, and transformation layers that produce consistent, validated outputs • AI workflow productionization — turning LLM/API prototypes into structured, testable systems with validation, traceability, controlled outputs, and clear handoff points I work primarily with Python, Node.js, TypeScript, SQL, MongoDB, PostgreSQL, Flask, REST APIs, and LLM/API integrations. A typical engagement might include: • Reviewing an existing backend, API, or pipeline and identifying the real failure points • Refactoring backend logic so behavior is predictable and easier to maintain • Adding validation, structured outputs, logging, and error handling • Fixing data inconsistencies across database, API, and integration layers • Stabilizing AI workflows with deterministic guardrails, retry/review paths, and traceable outputs • Writing clear documentation so the system can be maintained after the fix My Upwork history includes long-term backend/AI platform work, API middleware projects, database implementation, and technical QA engagements where clients needed clear diagnosis, reliable implementation, and strong communication. I’m a strong fit if: • Your system mostly works but fails under real-world usage • Your API, database, or data pipeline is producing inconsistent results • You built something quickly and now need to make it production-ready • Your AI workflow needs validation, structure, and reliability before users depend on it • You need someone who can step into an existing system, find the weak points, and fix them without overcomplicating the solution I’m comfortable working in existing codebases, identifying failure points quickly, and bringing structure to systems that have become hard to trust or maintain. If you’re dealing with an unreliable backend, API, data pipeline, or AI workflow, send an invite and we can define a practical first step.

🚀 Full-Stack AI Automation Engineer | RAG, n8n & Data Engineering I help businesses replace manual data work and disconnected tools with AI-powered systems, full-stack applications, and reliable data pipelines that run without babysitting. As a Senior AI Automation & Data Engineer at a UK-based fintech, and a Top Rated freelancer with a 100% Job Success Score, I've spent 3+ years building full-stack AI agents, RAG pipelines, n8n automations, and production data engineering systems that turn multi-day manual processes into automated ones: ⚡ Rebuilt a data migration pipeline that took 5–6 days of manual engineering — now runs in under 10 minutes, fully automated. 🤖 Built an LLM-powered document matching pipeline (Claude, RAG-style retrieval) that cut a 3–4 day manual regulatory review process down to a fraction of that time. 💬 Built a full-stack natural-language-to-SQL platform (FastAPI + Angular + OpenAI/Claude + LangChain) that let non-technical users query databases directly — cutting ad-hoc reporting requests by 70%, with sub-30-second query generation. 📊 Partitioned a 30M+ row SQL Server table with aligned indexing for an 80% reduction in query execution time. ☁️ Migrated a 2TB+ SQL Server database to PostgreSQL with full validation and 100% data consistency, cutting licensing costs. 🤖 AI Automation & Agents 🔹 AI agent development, RAG pipelines, prompt engineering 🔹 LLM API integration (OpenAI, Claude) into real business workflows 🔹 n8n workflow automation connecting business tools, CRMs, and data sources 🔹 RAG-based virtual assistants and AI SMS/voice agents 🔄 Data Engineering 🔹 ETL pipeline design, data validation & cleansing, metadata-driven frameworks 🔹 dbt, data warehousing, Snowflake 🔹 Orchestration & streaming: Apache Airflow, NiFi, Kafka, Spark/PySpark 🗄️ Database & Cloud 🔹 SQL Server, PostgreSQL — query optimization, partitioning, stored procedures 🔹 AWS (S3, Lambda, EventBridge), Terraform, Docker, Kubernetes 💻 Full-Stack Delivery 🔹 Frontend: React, Angular 17, Vue, TypeScript 🔹 Backend: Python/FastAPI, .NET Core, Node.js/NestJS, Flask 🔹 REST API design end-to-end — building complete SaaS products from database to UI I work full-time as a Senior AI Automation & Data Engineer at a UK fintech, so I bring production-grade standards — validation, observability, security — to every freelance engagement, not just prototype-quality work. 🎯 If you need a full-stack AI agent or automation workflow built, a data pipeline that actually holds up in production, or a database that's slow and needs fixing, let's talk about what you're trying to solve. Also searchable for: AI Automation Engineer, AI Agent Developer, RAG Pipeline Developer, n8n Automation Expert, Full-Stack Developer, ETL Pipeline Developer, Data Engineer, Python Developer, SQL Server to PostgreSQL Migration, SaaS Development.

start.daviddoesdata.com. Expert-vetted GA/GTM pro who can audit/augment your tracking—with experience in tons of other technologies/platforms. I will find the signal in the noise of your data! Check out my intro video for a short overview of my services, or my website, start.daviddoesdata.com. List of specialties: * Auditing/Fixing your analytics implementation (Google Analytics, GTM, Meta Pixel, others) * Enhancing your current tracking to capture more key user interactions * Visualizing your data in dashboard/BI tools like Looker Data Studio * Quantitative analysis & statistical modeling * Automation/Data pipelining * A/B testing strategy, implementation & analysis

I help businesses turn raw data, images, and operational problems into practical AI/data solutions that create measurable impact. I’m Gustavo, a Data Scientist and AI/Computer Vision Engineer with hands-on experience building real-world systems from idea to deployment. My focus is simple: understand the business problem, define clear metrics, prototype fast, and deliver solutions that actually work in production. What I can help you with Computer Vision & Edge AI I build real-time detection, tracking, OCR, and video analytics systems using YOLOv8, OpenCV, TensorRT, NVIDIA GPUs, Jetson, Raspberry Pi, and RTSP camera streams. I can help with people counting, object detection, sports analytics, surveillance analytics, quality control, and custom vision pipelines. Data Science & Machine Learning I work end-to-end with Python, SQL, Pandas, NumPy, scikit-learn, NLP, statistical analysis, predictive models, clustering, recommendation systems, and model evaluation. I can take messy data, clean it, structure it, extract insights, and build models that support better decisions. Dashboards & Business Insights I create clear reports and dashboards in Power BI, Excel, Google Sheets, and Python so teams can track KPIs, understand performance, and make decisions faster. Automation & Deployment I can integrate APIs, automate workflows, build REST/WS services, deploy models on cloud, edge, or on-premise environments, and set up simple monitoring so the system is reliable and easy to maintain. Why work with me? I don’t just build models. I build practical solutions. My approach is fast, clear, and focused on results: define the goal, build the solution, test it, measure it, and improve it. I’m comfortable working with both technical and non-technical teams, and I always aim to make complex AI/data work easy to understand and useful from day one.